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Finding the Fourth Proportional to 200,386,325.20, 300,579,487.80 and 200,386,325.20

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Solution

The fourth proportional to 200,386,325.20, 300,579,487.80 and 200,386,325.20 is: 300,579,487.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,386,325.20 : 300,579,487.80 = 200,386,325.20 : x
  2. Step 2: Convert to fraction form
    200,386,325.20/300,579,487.80 = 200,386,325.20/x
  3. Step 3: Cross multiply
    200,386,325.20x = 300,579,487.80 × 200,386,325.20
  4. Step 4: Simplify right side
    200,386,325.20x = 60,232,018,990,740,232
  5. Step 5: Solve for x
    x = 60,232,018,990,740,232/200,386,325.20
  6. Step 6: Final answer
    x = 300,579,487.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.